Total Active Federal Military Service Date
it is a date represented in YYMMDD format that represents how much active duty service time you have. For Active Duty members it is usually the date of their enlistment. For Guard/Reserve members it changes and you subtract the total number of ADT days (not including drill weekend or PT days as those are IDT) from today's date and that will give you the TAFMSD. This is a tricky equation and takes practice.
it is a date represented in YYMMDD format that represents how much active duty service time you have. For Active Duty members it is usually the date of their enlistment. For Guard/Reserve members it changes and you subtract the total number of ADT days (not including drill weekend or PT days as those are IDT) from today's date and that will give you the TAFMSD. This is a tricky equation and takes practice.